Stencil-frame.



No. 708,628. Patented Sept. 9, I902.

S. ELLIOTT.

STENCIL FRAME.

(Application meq may 12, 1900. Renewed Feb. 13, 1902.

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UNITED STATES PATENT OFFICE.

STERLING ELLIOTT, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE ELLIOTTCOMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION or MAINE.

STENClL-FRAM E.

SPECIFICATION forming part of Letters'Patent No. 708,628, datedSeptember 9, 1902.

Application filed May 12,1900. Renewed I'ehruary 13, 1902. Serial No.93,960. (No model.)

T0 aZZ whom it may concern.-

Beit known thatLSTEELING ELLI0Tr,a citizen of the United States,residing in Boston, county of Suffolk, and State of Massachusetts, haveinvented certain new and useful Improvements in Stencil-Frames, of whichthe following is a specification.

My invention relates to frames for stencils; and it consists of an openframe having channeled side and end pieces and notches, as fully setforth hereinafter, and as illustrated in the accompanying drawings, inwhich-- Figure l is a perspective View of my improved stencil-frame;Fig. 2, a longitudinal section; Fig. 3, a longitudinal section of aframe of cast metal embodying my improvements.

The frame A is an open frame that is,without any baokso that when astencil-sheet a, of paper, celluloid, or other material, is inserted inthe frame it may be applied to the article to be marked and printedthrough ontothe latter. The frame may be of separate connected pieces,but is most advantageously made of a single sheet or strip of-metal cutout to form the opening X larger than the printing area of thestencil-strip and folded over at the edges to form flanges b b c a,overlying the body of the plate, leaving intermediate channels as m toreceive the edges of the sheet,which is thus held securely in the frame.In order to permit the introduction of the sheet and its readywithdrawal, the flanges b b are cut away near the end flange c, formingnotches e c,through which the end of the sheet may be introduced intothe side channels beneath the flanges b b, after which it may be pushedin until its end is beneath the flange 0, when by slightly buckling itthe other end may be caught under the flange c. The sheet is thussecurely held, but so as to be readily withdrawn by upward pressure onthe under side near the flange c. I have found that if the flange c isas wide as the end or crosspiece of the frame beneath it is extremelydifficult to insert the end of the sheet below the flange, but that ifthe said flange and the end piece are of different widths the end of thesheet is supported in a flat position on and is guided by the latterinto the channel beneath the flange and a device which otherwise wouldbe very ineffective is made commercially practicable. It is also well tomake the side pieces wider than their overhanging flanges, as shown.

By making the article from a sheet of metal, turning up the edges toform flanges and channels, the cost of manufacture is reduced to aminimum and a rigid,light,and durable frame is secured. It is notnecessary to use sheet metal, however, as the article might be made ofcast metal, as zinc or composition, as illustrated in Fig. 3.

Without limiting myself to the precise construction shown, I claim- Anopen frame for stencils having side and end"pieces with overhangingflanges forming channels in each thereof, the flange of one of the endpieces of a different width from the cross-piece below, and with notchese e in the side pieces adjacent to the end piece, substantially as setforth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

STERLING ELLIOTT.

